Ability to override each part of the report for total customization of your report

Fluent API

Ability to put data over images; gradients, etc.

Quickly generate complex reports with minimal lines of code.

Colorization (& other cell changes) of text per cell in Bands

See the simple & stupid examples for a overview on how to generate a somewhat complex report.
In these reports I tried to throw in a chunk of the kitchen sink to try and give you and
idea how powerful the engine is.